Pressure-controlled valve.



I. H. GOLDMAN.

PRESSURE CONTROLLED VALVE. APPLICATION FILED JUNE 16, 1915.

1, 178,068, Patented Apr. 4, 1916.

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UMTED sra'rns refrains orrion.

ISIDORE I-i'. GOLDMAN, OF NEW YORK, N. Y.

PRESSURE-CONTROLLED VALVE.

Specification of Letters Patent.

Patented Apr. 4, 1916.

Application filed June 16, 1915. Serial No. 34,489.

packing ring filling machines such as is disclosed in my pending application for patent filed May 5, 1915, Ser. No. 26,073, the object being to automatically divert the fiow of the filling material from the tubular packing ring section when a pressure is reached which mi ht cause the packing ring section to burst or cause other damage to the packing ring or the machine for filling the same, thus making it unnecessary to rely upon an attendant for turning the valve to divert the filling material from said packing ring. Obviously, the invention may also be used advantageously for similar purposes on other kinds of filling machines.

The invention will be first hereinafter described in connection with the accompanying drawings. which constitute a part of this specification, and then more specifically defined in the claims at the end of the description.

In the accompanying drawings, wherein similar references characters are used to designate corresponding parts throughout the several views:'Figure 1 is a vertical section through a filling machine constructed with valve releasing mechanism in accordance with the present invention. Fig. 2 is a detailed plan view of the'angular valve operating device. and Fig. 3 is a section of the line IIIIII of Fig. 1, showing the cylindrical form of the valve and the means for limiting the movement thereof.

The filling machine comprises a hopper 1 into which the filling material is placed, said hopper having a throat 2 with a re stricted passage 3 at its bottom leading to the valve 4 having two ports or passages 5 and 6, the former adapted to communicate with a passage 7 in the bottom 8 of the easing of the machine, and the port 6 de signed to communicate with a passage 9 in the back 10 of said casing. The port 5 is straight and when the valve is in the position shown in F 1g. 1, it communicates directly from the restricted portion 3 at the bottom of the throat of the hopper to the passage 7 below which the receptacle to be filled may be secured in any suitable manner. The port 6 is angular, as clearly illustrated in Fig. 3 taken with Fig. 1, and has one end arranged axially of the valve and always registering with the diverting passage 9. The valve may be turned from the position illustrated in Fig. 1 to a position inwhich the port 6 will divert the filling material through the passage 9. by means of an angular hand lever 11 which may be screwed into the valve or otherwise secured thereto.

The valve turning device 11 has an arm 12 which is arranged horizontally when the valve is in normal position for filling a receptacle through the passage 7, as shown in Fig. 1. Said device is also provided with a lug or secondary arm 13 preferablv parallel to the arm 12 and having a spring 14: attached thereto. The other end of the spring is connected to a lug 15 projecting from the bottom 8 of the casing of the machine, and when the device 11 and valve are in the position shown in Fig. 1, the spring is under tension. Said device 11 is normally held in this position by the hooked lower end 16 of a pivoted latch 17 which is pivoted at 18 intermediate of. its ends to a bracket 19 secured to the casing of the machine in any suitable manner. so that the upper end 20 of said latch is arranged in the path oflan axially movable pin 21 arranged horizontally in the wall of the cas ing above the valve.

The pin 21 is fitted in an adjustable bushing or nut 22, and at the inner end said pin is provided with a head 23 adapted to be reciprocated in a chamber 24 opening on the restricted portion 3 at the bottom of the throat of the hopper. A spring 25 is coiled around the pin between the adjustablegnut 22 and the head 23 and holds said head normally inward against the stop 3. The filling material is fed through the restricted portion 3 below the hopper by force in any suitable manner (not shown), and when thedevice is in the normal position shown in Fig. 1, said material will pass through the port 5 of the valve and the passage 7 into a receptacle arranged below said passage. When the receptacle has been filled and the filling forced into the same as compactly as desired, the increased pressure upon the material in the restricted passage 3 will act upon the head 23 and force the pin 21 out against the spring 25 and cause the end of the pin to engage the upper end of the latch 20, thereby releasing the hooked lower end 16 of said latch from the arm 12, whereupon the spring 1 1 will immediately turn the valve to a position for diverting the filling material through the port 6 and passage 9; \Vhen the filled receptacle has been removed and another one secured in place below the passage 7, the valve may be returned to normal position by grasping the arm 12 and raising it into engagement with the hooked lower end 16 of the latch.

As illustrated in Fig. 8, the valve is provided with an arcuate groove 27 into which a bolt 26 extends for limiting the movement or rotation of the valve from the position shown in Fig. 1 to the position in which the port 6 is in register with the restricted passage 8.

One of the semi-circular tubular packing rings such as are described in my co-pending application above mentioned, is indicated in dotted lines at 28 in Fig. 1, in order to show how a receptacle to be filled may be arranged below the passage 7, but it will be understood that the machine equipped with the automatic valve releasing mechanism described herein may also be used for filling various other kinds of receptacles.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent of the United States is 1. The combination with a casing having a passage through which filling material is adapted to be forced, and a valve for diverting the flow of said material, of means for holding the valve in normal position, means for moving the valve to diverting position when released, and means for automatically releasing said holding means from the valve when the pressure of the material in said passage reaches a predetermined point.

2. The combination with a casing having a passage through which filling material is adapted to be forced, and a valve for diverting the flow of said material, of a valve moving device having an angularly extending arm, a latch for engaging said arm to hold the valve in normal position, means for moving the valve to diverting position when released, and means for automatically releasing said holding means from the valve when the pressure of the material in said passage reaches a predetermined point.

3. The combination with a casing having a passage through which filling material is adapted to be forced, and a valve for diverting the flow of said material, of a valvemoving device having an angularly projecting lug, means for holding the valve in-normal position, aspring for moving the valve to diverting position when released, said spring being connected to said lug, and means for automatically releasing said holding means from the valve when the pres sure of the material in said passage reaches a predetermined point.

4. The combination with a casing having a passage through which filling material is adapted to be forced, and a valve for diverting the flow of said material, of a latch for holding the valve in normal position, a pin movable axially for engaging and releasing the latch, means for moving the valve to diverting position when released, said pin having a head adapted to be reciprocated in a chamber opening on said passage, and

resilient means for holding said pin against movement for releasing the latch until a predetermined pressure in the passage is reached.

5. T he combination with a casing having a passage through which filling material is adapted to be forced, and a valve for diverting the flow of said material, of a latch for,

holding the valve in normal position, means for moving the valve to diverting position when released, a pin movable axially for engaging the latch for releasing the valve, said pin having a head adapted to be reciprocated in a chamber opening on said passage, means for limiting the inward movement of said pin, a spring for holding said pin against movement to release the latch until a predetermined pressure in the passage is reached, and means for varying the tension.

of said spring.

In testimony whereof I have signed my name to this specification.

ISIDORE H. GOLDMAN.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Iatents,

Washington, D. C. 

